A study is being conducted to estimate the number of hours adults in England spend reading each week. On weekday afternoons, researchers stand outside six public libraries in Bristol. The first 500 adult visitors who agree are asked to keep a seven-day reading diary.
Explain why the way the participants were recruited could produce an unrepresentative sample, despite 500 adults taking part.
182 exam-style questions on OCR GCSE Psychology 7.1 Planning Research, covering 7.1.1 Hypotheses, 7.1.2 Variables, 7.1.3 Experimental Designs, 7.1.4 Populations and Sampling, 7.1.5 Ethical issues, and 7.1.6 Dealing with ethical issues and BPS Code. Each one has a worked solution and a mark scheme showing where the marks go.